[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Negative Lookahead Equivalent in emacs
From: |
luishenriquezperez |
Subject: |
Negative Lookahead Equivalent in emacs |
Date: |
Mon, 8 May 2017 22:15:42 -0700 (PDT) |
User-agent: |
G2/1.0 |
Hi,
I'm trying to write a regex that matches the last character of a sequence of
non-whitespace characters '[^\n\r\t\f ]', or an empty line matching ^$.
Thus:
Hello World! --> "o" and "!" would be matched
In non-elisp regex languages I know the code for this is: \S(?!\S)
I know that \S is equivalent too [^ /n/r/t/f].
But I'm unsure of what the elisp equivalent (if any) of the negative lookahead
(?!).
I saw on this forum a post "gnu.emacs.help › regex nirvana - near miss"
Where Drew Adams said: "Typically, what you want to do for this in Emacs Lisp
is to combine
the use of a regexp for positive matching with other code that takes
care of the non-matching (negation) need. "
However, I'm not sure how to go about doing this.
- Negative Lookahead Equivalent in emacs,
luishenriquezperez <=
- Re: Negative Lookahead Equivalent in emacs, Emanuel Berg, 2017/05/09
- Re: Negative Lookahead Equivalent in emacs, hector, 2017/05/09
- Re: Negative Lookahead Equivalent in emacs, Wasell, 2017/05/09
- Re: Negative Lookahead Equivalent in emacs, Felix Dietrich, 2017/05/09
- Re: Negative Lookahead Equivalent in emacs, luishenriquezperez, 2017/05/09
- Re: Negative Lookahead Equivalent in emacs, luishenriquezperez, 2017/05/10